Title :
The TRIUMF high-current DC optically-pumped polarized H- ion source
Author :
Zelenski, A.N. ; Levy, C.D.P. ; Jayamanna, K. ; McDonald, M. ; Schmor, P.W. ; van Oers, W.T.H. ; Welz, J. ; Wight, G.W. ; Dutto, G. ; Mori, Y. ; Sakae, T.
Author_Institution :
Inst. for Nucl. Res., Acad. of Sci., Moscow, Russia
Abstract :
The TRIUMF optically-pumped polarized H- ion source (OPPIS) produces in excess of 150 μA DC of H- ion current at 85% polarization within a normalized emittance of 0.8 pi mm mrad. A 20 μA beam was accelerated to 500 MeV through the small acceptance of the injection line and the cyclotron. A feasibility study of higher current production for application to multi-GeV accelerators has been performed. A polarized H ion current of 1.6 mA within a normalized emittance of 2.0 pi mm mrad was obtained after upgrading the ECR primary proton source. The source performance now well exceeds the original design parameters and clearly confirms the potential of the OPPIS technique for other accelerators
Keywords :
cyclotrons; hydrogen ions; ion accelerators; ion sources; negative ions; particle beam injection; 1.6 mA; 150 muA; 20 muA; 500 MeV; DC optically-pumped ion source; ECR primary proton source; H; OPPIS; TRIUMF high-current ion source; cyclotron; feasibility study; injection line; multiGeV accelerators; normalized emittance; polarized H- ion source; Acceleration; Cyclotrons; Ion accelerators; Ion sources; Optical polarization; Particle beam optics; Particle beams; Production; Proton accelerators; Stimulated emission;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505065
